Blender is a free open source 3D content creation suite, available for all major operating systems under the GNU General Public License. Blender 2.59 has been released, Blender 2.59 gets major updates and many bug fixes.

Blender 2.59 Changelog

This is mostly a bug fix release with 140 fixes since 2.58a. Additions include improved keymap editing, 3D mouse support, some new addons and Node UI improvements.